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Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files. All computation runs locally in your browser.

Frequently Asked Questions

What is a hash function?

A hash function takes an input of any size and produces a fixed-size string of characters (the hash). The same input always produces the same hash, but even a tiny change in the input produces a completely different hash. Hash functions are used for data integrity verification, password storage, and digital signatures.

Which hash algorithm should I use?

For security purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are considered cryptographically broken and should only be used for non-security purposes like checksums. SHA-256 offers a good balance of security and performance for most applications.

Can I hash a file online?

Yes. Drag and drop a file or click to select one. The file is hashed entirely in your browser using the Web Crypto API — it is never uploaded to any server. This makes it safe to hash sensitive files.